How to File a Diminished Value Claim in California

Oct 18, 2025

Guide to File Diminished Value Claim in California
Guide to File Diminished Value Claim in California

If you’ve been in a car accident in California, even after repairs, your car may lose some of its resale value simply because it now has an accident history. This loss in value is called diminished value, and in many cases, you can file a diminished value claim in California to recover that financial loss.

This guide will help you understand how diminished value works in California, who can file a claim, and the step-by-step process to make sure you get fair compensation.

Understanding Diminished Value in California

Understand Diminished Value in California

California recognizes inherent diminished value, which refers to the automatic decrease in your car’s resale value after an accident, even with quality repairs.

However, there are a few key things to know:

  • You can only make a claim if another driver was responsible for the accident.

  • If you caused the accident, your own insurance won’t pay for diminished value under standard collision coverage.

  • The car’s age, mileage, accident severity, and pre-accident condition all influence how much value you can recover.

  • There’s no specific California statute that sets out how diminished value is calculated, but claims are supported under general insurance and property damage laws.

Step-by-Step Guide to Filing a Diminished Value Claim in California

Step 1: Confirm Who Was at Fault

Before you start your claim, make sure that another driver was legally at fault for the accident. California follows a comparative fault system, which means you can only recover diminished value if you were less than 50 percent responsible for the accident.

Get a copy of the police report or accident report, as this document will help prove liability.

Step 2: Get Your Vehicle Repaired and Keep Documentation

Take your car to a reputable repair shop and ensure all repairs are done professionally. Keep every invoice, parts list, and estimate.

These documents show that your car was restored correctly and help establish your claim’s foundation.

Step 3: Get a Professional Diminished Value Appraisal

A diminished value appraisal is one of the most critical pieces of evidence in your claim. This appraisal determines how much your car’s value has dropped after the accident.

Working with a certified appraiser, such as My Fair Claim, ensures that your report is accurate, data-backed, and recognized by insurance companies. Their reports use real market data to calculate the difference between your car’s pre-accident and post-repair value.

Step 4: Gather Supporting Evidence

To make your case stronger, collect all the necessary supporting documents. These include the accident report, repair receipts, before-and-after photos of your vehicle, a copy of your vehicle history report (like Carfax), and your diminished value appraisal report.

These documents together prove the legitimacy of your claim and help justify your compensation request.

Step 5: Submit a Demand Letter to the At-Fault Driver’s Insurance Company

Once you have all your evidence, prepare a demand letter for the at-fault driver’s insurance company.

In the letter, include details such as the date and description of the accident, your vehicle’s information (make, model, year, VIN), the total repair cost, the appraised diminished value, and the amount you are requesting. Be clear, factual, and polite. The insurance company will review your request and may contact you for further discussion.

Step 6: Negotiate Your Claim

Insurance companies often try to minimize their payouts by disputing the appraisal or offering a lower settlement. This is where your appraisal and documentation make a difference. Present your appraisal results, explain how the report reflects the real market loss, and if necessary, use comparable vehicle listings to prove your car’s reduced value.

If the insurer refuses to negotiate fairly, you can seek help from a diminished value expert or an attorney specializing in California insurance law.

Step 7: Take Legal Action If Necessary

If negotiations fail, you can consider filing a small claims lawsuit against the at-fault driver or their insurance company. In California, small claims court can handle property damage claims up to $10,000 without needing a lawyer.

However, most diminished value claims can be settled with proper documentation and professional negotiation before reaching that stage.

How Long Do You Have to File a Diminished Value Claim in California?

In California, the statute of limitations for property damage, including diminished value claims, is three years from the date of the accident.

It’s best to start the process as soon as possible while all documentation and evidence are still easily available.

How Much Can You Recover?

The exact amount varies depending on your car’s age, mileage, and the severity of the damage. A newer or high-value car that sustained major repairs often has a higher diminished value loss compared to an older car. 

Professional appraisals in California usually calculate diminished value as the difference between the vehicle’s pre-accident retail value and its post-repair market value.

For example, if your car was worth $25,000 before the accident and its post-repair market value is $21,000, your diminished value would be $4,000.

Why Choose My Fair Claim 

Filing a diminished value claim in California can be time-consuming and confusing, especially when dealing with insurance adjusters who may not acknowledge your car’s true loss in value.

 My Fair Claim helps simplify this process for California car owners by offering accurate, data-driven appraisals that insurance companies respect. 

The team also helps prepare your demand letter and guides you through the negotiation process to ensure you receive the maximum fair settlement possible.

If you’ve been in an accident in California in the past three years, you might still qualify for compensation.

Don’t let your car’s value loss go unpaid; contact now to let the experts at My Fair Claim handle your appraisal and claim process.

Final Thoughts

Your car is one of your most valuable assets, and when it loses value after an accident, you have the right to seek compensation.

To file a diminished value claim in California, prove the other driver was at fault, get your car repaired, obtain a professional diminished value appraisal, and submit a demand letter with evidence to the at-fault driver’s insurance company for compensation.

Start your claim early, be patient during negotiations, and don’t settle for less than your car’s true worth.